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Finding the Fourth Proportional to 14,195.79, 19,589.93 and 7,822.97

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Solution

The fourth proportional to 14,195.79, 19,589.93 and 7,822.97 is: 10,795.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,195.79 : 19,589.93 = 7,822.97 : x
  2. Step 2: Convert to fraction form
    14,195.79/19,589.93 = 7,822.97/x
  3. Step 3: Cross multiply
    14,195.79x = 19,589.93 × 7,822.97
  4. Step 4: Simplify right side
    14,195.79x = 153,251,434.69
  5. Step 5: Solve for x
    x = 153,251,434.69/14,195.79
  6. Step 6: Final answer
    x = 10,795.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.